Hi Lubos,

I received your suggested 'filter' solution a couple of months ago in
response to a problem I was having with tapestry and UTF-8, I didn't use it
afterwards as I just used an image instead of the desired text, but now that
I'm internationalising my web application, I'd like to fix this problem for
once and for all.

I've tried/attempted your solution, but to no avail, perhaps you could take
a quick look at my implementation and check to see that I haven't done
something stupid!

Regards, Brian.

In web.xml (just the relevant entries are shown)
<web-app>
    <context-param>
        <param-name>PARAMETER_ENCODING</param-name>
        <param-value>UTF-8</param-value>
    </context-param>

    <filter>
        <filter-name>meta-filter</filter-name>
        <filter-class>com.mycompany.MetaFilter</filter-class>
    </filter>

    <filter-mapping>
        <servlet-name>my_project</servlet-name>
        <filter-name>meta-filter</filter-name>
    </filter-mapping>

     <servlet-mapping>
         <servlet-name>my_project</servlet-name>
         <url-pattern>/app</url-pattern>
     </servlet-mapping>

</web-app>

The filter class I created based on your example . . .


package com.mycompany;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;

public class MetaFilter implements Filter {

    FilterConfig config;

    public void init(FilterConfig config)
    {
        this.config = config;
    }

     public void doFilter(ServletRequest servletRequest, ServletResponse
             servletResponse,
                        FilterChain filterChain) throws IOException,
ServletException {
              try  {
                  HttpServletRequest httpServletRequest =
(HttpServletRequest)
             servletRequest;
                        servletRequest.setCharacterEncoding("UTF-8");
                        servletResponse.setContentType( "text/html;
charset=UTF-8" );
              } finally {
                  //do nothing;
              }
     }

    public void destroy() {

    }


}

I'm sure I missing something in the above, the httpServletRequest I create
is never read/used, perhaps you could give me some pointers as to how I
would finish off this class?

Thanks again for all your help . . .

On 1/31/06, Lubos and Alena Pochman <pochmans@gmai...> wrote:
>
> I had the same problem with Tapestry 3.02 and I think it is still in 4.0.
> Somehow
> Tapestry doesnt' set up content type properly. Looking at html source from
> Tapestry,
> the <meta> for content type is not the first <meta> but the second <meta>
> in
> the <header>.
> I have read somewhere, that content type <meta> must be the first in
> <header> otherwise it is ignore.
>
> I came with workaround. I use web-app <filter> and in that I force utf-8:
>
> public void doFilter(ServletRequest servletRequest, ServletResponse
> servletResponse,
>             FilterChain filterChain) throws IOException, ServletException
> {
>   try  {
>       HttpServletRequest httpServletRequest = (HttpServletRequest)
> servletRequest;
>             servletRequest.setCharacterEncoding("UTF-8");
>             servletResponse.setContentType( "text/html; charset=UTF-8" );
>
>
> It is ugly but it works.
>
> Lubos
>
>